diff --git a/mo/jobs/protocols.py b/mo/jobs/protocols.py
index c80bd12ed04c81b78ea23d1d1c8fd10150e8939f..1390cfe913e05deb68e04866a18882839249012c 100644
--- a/mo/jobs/protocols.py
+++ b/mo/jobs/protocols.py
@@ -72,7 +72,7 @@ def _get_user_id_query(contest: db.Contest, site_id: Optional[int]) -> Query:
 def _get_pants(contest: db.Contest, site_id: Optional[int]) -> List[db.Participant]:
     user_id_subq = _get_user_id_query(contest, site_id).subquery()
 
-    pants = (sess.query(db.Participant)
+    pants = (db.get_session().query(db.Participant)
              .options(joinedload(db.Participant.user), joinedload(db.Participant.school_place))
              .filter(db.Participant.user_id.in_(user_id_subq))
              .all())